= Global variable related to block decomposition =

The global variable M_.block_structure contains informations about the block structure for static and dynamic models
== static_blocks ==
 * mfs : the variables belonging to the minimum feedback set. The block is solved with respect to those variables. The remaining variables of the blocks are purely recursive ones.
== dynamic block ==
 * simulation_type : indicates the way to solve the (deterministic) model. (see ByteCode)
 * maximum_lag : maximum lag for all variables in the block
 * maximum_lead : maximum lead for all variables in the block
 * maximum_endo_lag : maximum lag for endogenous variables in the block
 * maximum_endo_lead : maximum lead for endogenous variables in the block
 * maximum_exo_lag : maximum lag for exogenous variables in the block
 * maximum_exo_lead : maximum lead for exogenous variables in the block
 * maximum_exo_det_lag : maximum lag for exogenous variables in the block
 * maximum_exo_det_lead : maximum lead for exogenous variables in the block
 * endo_nbr : number of endogenous variables in the block
 * mfs : number of feedback variables in the block
 * equation : list of equations of the block
 * variable : list of variables of the block
 * exo_nbr : number of exogenous variables in the block
 * exogenous : list of exogenous variable of the block
 * exo_det_nbr : number of deterministic exogenous variables in the block
 * exogenous_det : list of deterministic exogenous variables of the block
 * other_endo_nbr : number of endogenous variables related to previous blocks and entering in the current block
 * other_endo : list of endogenous variables related to previous and entering in the current block
 * lead_lag_incidence : the matrix containing the column index of the Jacobian matrix of the block for each endogenous variable (columns of lead_lag_matrix) and for each lead and lag (rows of lead_lag_matrix)
 * n_static : number of static endogenous variables in the current block (see dr1.tex in doc directory)
 * n_forward : number of purely forward endogenous variables in the current block (see dr1.tex in doc directory)
 * n_backward : number of purely backward endogenous variables in the current block (see dr1.tex in doc directory)
 * n_mixed : number of endogenous variables that appear both with lag and lead in the current block (see dr1.tex in doc directory)
== variable_reordered ==
 The list of reordered endogenous variables
== equation_reordered ==
 The list of reordered equation number
== incidence ==
  Contains for each lead and lag the incidence matrix
  * lead_lag : the number of lead (for positive value) or the number of lag (for negative value)
  * Sparse_IM : the sparse representation of the incidence matrix : each row contain a non null value in the incidence matrix. The first (second) element indicates the equation (endogenous variable).